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Finding the Fourth Proportional to 185,800.57, 256,403.37 and 100,918.24

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Solution

The fourth proportional to 185,800.57, 256,403.37 and 100,918.24 is: 139,266.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,800.57 : 256,403.37 = 100,918.24 : x
  2. Step 2: Convert to fraction form
    185,800.57/256,403.37 = 100,918.24/x
  3. Step 3: Cross multiply
    185,800.57x = 256,403.37 × 100,918.24
  4. Step 4: Simplify right side
    185,800.57x = 25,875,776,567.90
  5. Step 5: Solve for x
    x = 25,875,776,567.90/185,800.57
  6. Step 6: Final answer
    x = 139,266.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.